I think your observation provides more support for striking DFSG#10 as
such from the document.

Or for adding a constraint that there be no explicit statement
restricting
distribution to any countries.
The problem with striking it entirely is that we then have to deal with
the people who misinterpret the DFSG to claim that the GPL is not free.
Which was the reason that clause was placed there in the first place.

How about:

10. The following are examples of free software licenses, in accordance
to these Guidelines, and those [[Guidelines?]] shouldn't ever be
interpreted in a way that does conflict with said examples being
considered free:
(a) the GNU GPL, provided the option in section 8 is not exercised
[[link]]